Irwin IRW10502486 HSS Long Pro Drill Bits 4.0mm – Bulk Pack of 10 (120mm Overall Length) | 10502486

Irwin 10502486 HSS Pro Long Metal Drill Bit 4.0mm (10 Pack) – 120mm Long Series

Irwin 10502486 long series drill bits are designed for clean, accurate drilling where extra reach is needed, making them a practical choice for trade, workshop and site work. This 4.0mm HSS Pro long drill bit set is supplied as a bulk pack to support repeated drilling tasks with consistent results.

Model IRW10502486 uses a long-series design with a universal 118° point, helping the bit start accurately across a range of common materials including low carbon steel, soft metals, wood and plastics.

Key Features

• HSS long series design: Provides extra reach for deeper holes and awkward-to-access drilling positions.
• 4.0mm diameter: A versatile size for pilot holes, fixings preparation and general workshop drilling.
• 118° point geometry: Universal point shape suited to a wide range of everyday drilling tasks.
• Precision-ground cutting edges: Helps produce cleaner holes and controlled drilling performance.
• Ground flutes: Designed for accurate drilling and efficient chip removal.
• DIN 340 manufacture: Long-series specification for consistent sizing and application fit.
• Cylindrical shank: Compatible with standard drill chucks.
• Bulk pack of 10: Convenient for higher-volume work and tool crib replenishment.

Specifications at a glance

Suitable applications

• Deep or hard-to-reach drilling where a standard-length bit cannot access the work area.
• General drilling in low carbon steel and soft metals.
• Workshop and site drilling in wood and plastics where a long-series bit is beneficial.